Caddy: fileHidden() case-sensitive pattern bypass — exposes "hidden" files via case variation (CVE-2026-92700) | HOL Guard CVE

Medium · CVSS 6.3CVE-2026-92700

Caddy: fileHidden() case-sensitive pattern bypass — exposes "hidden" files via case variation

Answer in brief

CVE-2026-92700 records a Medium severity (CVSS 6.3) vulnerability in Caddy: fileHidden() case-sensitive pattern bypass — exposes "hidden" files via case variation. The current sources do not mark it as known exploited. The current feed maps caddyserver/caddy (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 23, 2026Updated Sep 23, 2026Source checked Sep 23, 2026First seen by HOL Sep 23, 2026Material review Sep 23, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps caddyserver/caddy (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
caddyserver/caddygeneric	<=2.11.3	= 2.11.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for caddyserver/caddy.
Review the reported fix. Update caddyserver/caddy to = 2.11.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 23, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source description

Caddy is an extensible server platform that uses TLS by default. In version 2.11.3 and earlier, in modules/caddyhttp/fileserver/staticfiles.go, fileHidden() uses case-sensitive filepath.Match checks, so case variants can bypass hide rules on case-insensitive filesystems or when mixed-case paths coexist and expose files intended to be hidden.

Quoted source text, attributed separately from HOL analysis.